Free Mortgage Calculator - Estimate Your Monthly Payment

How to Use This Mortgage Calculator

Estimating your total monthly housing cost takes only a few simple inputs. Follow these steps to calculate your payment:

  1. Home Price ($): Enter the total purchase price of the property you plan to buy.
  2. Down Payment ($ or %): Input the cash amount or percentage you plan to pay upfront. Standard down payments range from 3% to 20%.
  3. Loan Term: Select the fixed duration of the loan (e.g., 30 years or 15 years).
  4. Interest Rate (%): Enter the annual interest rate quoted by your mortgage lender.
  5. Taxes, Insurance & PMI (Optional): Input local annual property taxes, homeowner's insurance, and Private Mortgage Insurance (PMI) to see a complete monthly payment breakdown.

How Mortgage Payments Are Calculated

The principal and interest (P&I) portion of a fixed-rate mortgage is calculated using the standard amortization formula:

M = P [ r(1 + r)^n ] / [ (1 + r)^n - 1 ]

Formula Breakdown:

  • M = Total monthly principal and interest payment
  • P = Principal loan amount (Home Price − Down Payment)
  • r = Monthly interest rate (Annual Rate ÷ 12 months)
  • n = Total number of monthly payments (Loan Term Years × 12)

Understanding the 4 Components of a Mortgage (PITI)

Your total monthly check to your loan servicer often consists of four distinct costs, commonly referred to as PITI:

Component Description
Principal The portion of your payment that goes directly toward paying off the original money borrowed.
Interest The fee charged by the lender for borrowing the principal amount.
Property Taxes Taxes assessed by local government authorities, collected monthly by your lender and held in escrow.
Homeowner's Insurance Hazard insurance required by lenders to protect the home against damage, weather, or theft.
PMI (If Applicable) Private Mortgage Insurance, usually required if your down payment is less than 20% of the home price.
Mortgage Calculator

Mortgage Calculator

Estimate your monthly mortgage payment and total loan cost.

Loan Details

Payment Summary

Estimated Monthly Payment $0.00
Principal & Interest $0.00
Property Tax $0.00
Home Insurance $0.00
Monthly PMI $0.00
Total Interest $0.00
Total Loan Payments $0.00

Yearly Amortization Schedule

Year Annual Payment Principal Paid Interest Paid Remaining Balance